| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
On this circle, line segment CD is the:
diameter |
|
circumference |
|
radius |
|
chord |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
addition |
|
division |
|
pairs |
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exponents |
When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
If side x = 8cm, side y = 7cm, and side z = 14cm what is the perimeter of this triangle?
| 29cm | |
| 32cm | |
| 30cm | |
| 26cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 8cm + 7cm + 14cm = 29cm
If a = c = 5, b = d = 4, and the blue angle = 63°, what is the area of this parallelogram?
| 63 | |
| 7 | |
| 20 | |
| 72 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 5 x 4
a = 20
The dimensions of this trapezoid are a = 6, b = 5, c = 7, d = 4, and h = 4. What is the area?
| 18 | |
| 32 | |
| 7 | |
| 24 |
The area of a trapezoid is one-half the sum of the lengths of the parallel sides multiplied by the height:
a = ½(b + d)(h)
a = ½(5 + 4)(4)
a = ½(9)(4)
a = ½(36) = \( \frac{36}{2} \)
a = 18